不整地立位を支援する義足用靴底の開発

抄録

Most commercially available prosthetic legs are equipped only with plantar flexion and dorsiflexion functions. As a result, many prosthetic users experience difficulties when walking or standing on uneven terrain. Therefore, this study aims to develop a prosthetic shoe sole with inversion and eversion functions for prosthetic users. By combining this sole with an existing prosthetic foot that features plantar flexion and dorsiflexion capabilities, the prosthesis users can stably stand on uneven terrain at a low cost. This article proposes its basic structure and design method for the fluid system whose internal fluid is controlled by two tubes and a non-return valve. Based on the control objectives, the inner diameter of Tube 2 was determined to be 1.0 mm, with a length of 1.2 m. The developed prosthetic shoe sole showed no water leakage in both neutral and pseudo-eversion situations.